Cat litter box



FIG. 1 is a front top perspective view of a cat litter box showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a partially exploded right perspective view thereof;

FIG. 9 is an exploded right perspective view thereof;

FIG. 10 is a front elevation view of the middle tray shown separately from the complete cat litter box;

FIG. 11 is a rear elevation view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is left side view thereof;

FIG. 14 is a top plan view thereof; and,

FIG. 15 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the cat litter box that forms no part of the claimed design. 

CLAIM The ornamental design for a cat litter box, as shown and described. 